Respuesta :

[tex]\bf \cfrac{425~\underline{ft}}{\underline{h}}\cdot \cfrac{12~in}{\underline{ft}}\cdot \cfrac{\underline{h}}{60~min}\implies\cfrac{425\cdot 12~in}{60~min}\implies \cfrac{5100~in}{60~min}\implies 85\frac{in}{min}[/tex]

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